2.2.0.25truefalse42111 - Disclosure - PENSION, POSTRETIREMENT AND POSTEMPLOYMENT LIABILITIES (Fair Value of Pension and Postretirement Plan Assets by Asset Category) (Details)truefalseIn Millionsfalse1falsefalseUSDfalsefalse12/31/2010
USD ($)
USD ($) / shares
$As_Of_12_31_2010http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00Unit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit12Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit15Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2falsefalseUSDfalsefalse12/31/2009
USD ($)
USD ($) / shares
$As_Of_12_31_2009http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00Unit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit15Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit12Divide
http://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse60810000006081falsetruefalsefalsefalse2truefalsefalse53810000005381falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may
be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse3false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse
3falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Funds [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103104http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseEqui
ty Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquityFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Funds [Member]
12/31/2009
USD ($)
$As_Of_12_31_200971http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseEquity
Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquityFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse4false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse237000000237falsefalsefalsefalsefalse2truefalsefalse215000000215falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse5false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse
5falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Funds [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103115http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseEqui
ty Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquityFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$6falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Funds [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009938http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseEquit
y Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquityFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse6false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse16650000001665falsefalsefalsefalsefalse2truefalsefalse15160000001516falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse7false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse
7falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Funds [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103121http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseEqui
ty Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquityFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$8falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Funds [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009945http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseEquit
y Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquityFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse8false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse70000007falsefalsefalsefalsefalse2truefalsefalse80000008falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse9false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse
9falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Funds [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010398http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseEquity Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquityFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1<
UnitType>Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$10falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Funds [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009925http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseEquity Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquityFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1<
UnitType>Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse10false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse19090000001909falsefalsefalsefalsefalse2truefalsefalse17390000001739falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan ass
ets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse11false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e11falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103105http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseEqui
ty Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquitySecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$12falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009930http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseEquit
y Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquitySecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse12false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse17520000001752falsefalsefalsefalsefalse2truefalsefalse15090000001509falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse13false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e13falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010399http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseEquity Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquitySecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1
Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$14falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Equity Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009926http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseEquity Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_EquitySecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1
Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse14false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse17520000001752false
falsefalsefalsefalse2truefalsefalse15090000001509falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measur
ement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse15false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e15falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Fixed Income Funds [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103106http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseFixe
d Income Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FixedIncomeFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$16falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Fixed Income Funds [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009931http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseFixed
Income Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FixedIncomeFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse16false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse181000000181falsefalsefalsefalsefalse2truefalsefalse139000000139falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse17false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e17falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Fixed Income Funds [Member]
12/31/2010
USD ($)
$As_Of_12_31_201010http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseFixed
Income Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FixedIncomeFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$18falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Fixed Income Funds [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009724http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseFixed
Income Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FixedIncomeFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse18false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse367000000367falsefalsefalsefalsefalse2truefalsefalse322000000322falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse19false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e19falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Fixed Income Funds [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103100http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseFixed Income Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FixedIncomeFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUni
t1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$20falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Fixed Income Funds [Member]
12/31/2009
USD ($)
$As_Of_12_31_200970http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseFixed Income Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FixedIncomeFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1
Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse20false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaap<
IsBaseElement>truedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse548000000548false
falsefalsefalsefalse2truefalsefalse461000000461falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurem
ent date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse21false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e21falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Corporate Debt Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103114http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseCorp
orate Debt Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CorporateDebtSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$22falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Corporate Debt Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009937http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseCorpo
rate Debt Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CorporateDebtSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse22false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse309000000309falsefalsefalsefalsefalse2truefalsefalse294000000294falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse23false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e23falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Corporate Debt Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103120http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseCorp
orate Debt Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CorporateDebtSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$24falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Corporate Debt Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009726http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseCorpo
rate Debt Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CorporateDebtSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse24false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1400000014falsefalsefalsefalsefalse2truefalsefalse1800000018falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse25false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e25falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Corporate Debt Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010397http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseCorporate Debt Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CorporateDebtSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$26falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Corporate Debt Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_200969http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseCorporate Debt Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CorporateDebtSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse26false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse323000000323falsefalsefalsefalsefalse2truefalsefalse312000000312falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their f
air value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse27false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e27falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Short-Term Investment Funds [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103110http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseShor
t-Term Investment Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_ShortTermInvestmentFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$<
Label Id="3" Label="12/31/2010" />28falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Short-Term Investment Funds [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009934http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseShort
- -Term Investment Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_ShortTermInvestmentFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse28false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse244000000244falsefalsefalsefalsefalse2truefalsefalse219000000219falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentation
Ref
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse29false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e29falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Short-Term Investment Funds [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010391http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseShort-Term Investment Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_ShortTermInvestmentFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$30falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Short-Term Investment Funds [Member]
12/31/2009
USD ($)
$As_Of_12_31_200961http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseShort-Term Investment Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_ShortTermInvestmentFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse30false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse244000000244falsefalsefalsefalsefalse2truefalsefalse219000000219falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at thei
r fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse31false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e31falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : State and Municipal Bonds [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103111http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseStat
e and Municipal Bonds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_StateAndMunicipalBondsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$32falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : State and Municipal Bonds [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009935http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseState
and Municipal Bonds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_StateAndMunicipalBondsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse32false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse2400000024falsefalsefalsefalsefalse2truefalsefalse1000000010falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse33false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e33falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : State and Municipal Bonds [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010392http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseState and Municipal Bonds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_StateAndMunicipalBondsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$34falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : State and Municipal Bonds [Member]
12/31/2009
USD ($)
$As_Of_12_31_200964http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseState and Municipal Bonds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_StateAndMunicipalBondsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse34false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsu
s-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse2400000024falsefalsefalsefalsefalse2truefalsefalse1000000010falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value
as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse35false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e35falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Asset Backed Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103112http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseAsse
t Backed Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_AssetBackedSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$36falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Asset Backed Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009723http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseAsset
Backed Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_AssetBackedSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse36false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse2400000024falsefalsefalsefalsefalse2truefalsefalse1100000011falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse37false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e37falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Asset Backed Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103119http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseAsse
t Backed Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_AssetBackedSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$38falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Asset Backed Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009943http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseAsset
Backed Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_AssetBackedSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse38false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse70000007falsefalsefalsefalsefalse2truefalsefalse60000006falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse39false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e39falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Asset Backed Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010394http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseAsset Backed Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_AssetBackedSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$40falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Asset Backed Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_200966http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseAsset Backed Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_AssetBackedSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse40false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-g
aaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse3100000031falsefalsefalsefalsefalse2truefalsefalse1700000017falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as
of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse41false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e41falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Government Mortgage Backed Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103108http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseGove
rnment Mortgage Backed Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_GovernmentMortgageBackedSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$42falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Government Mortgage Backed Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009722http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseGover
nment Mortgage Backed Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_GovernmentMortgageBackedSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse42false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse391000000391falsefalsefalsefalsefalse2truefalsefalse285000000285falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: ht
tp://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse43false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e43falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Government Mortgage Backed Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010388http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseGovernment Mortgage Backed Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_GovernmentMortgageBackedSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$44falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Government Mortgage Backed Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_200958http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseGovernment Mortgage Backed Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_GovernmentMortgageBackedSecuritiesMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse44false0us-gaap_DefinedBenefitPlanFai
rValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse391000000391<
IsIndependantCurrency>falsefalsefalsefalsefalse2truefalsefalse285000000285falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually
in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse45false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e45falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Collateralized Mortgage Obligation Bonds [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103113http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseColl
ateralized Mortgage Obligation Bonds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CollateralizedMortgageObligationsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$46falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Collateralized Mortgage Obligation Bonds [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009936http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseColla
teralized Mortgage Obligation Bonds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CollateralizedMortgageObligationsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse46false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse8700000087falsefalsefalsefalsefalse2truefalsefalse7900000079falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Referen
ce 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse47false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e47falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Collateralized Mortgage Obligation Bonds [Member]
12/31/2010
USD ($)
$As_Of_12_31_201012http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseCollat
eralized Mortgage Obligation Bonds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CollateralizedMortgageObligationsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$48falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Collateralized Mortgage Obligation Bonds [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009944http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseColla
teralized Mortgage Obligation Bonds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CollateralizedMortgageObligationsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse48false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1000000010falsefalsefalsefalsefalse2truefalsefalse1300000013falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Referen
ce 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse49false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e49falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Collateralized Mortgage Obligation Bonds [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010396http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseCollateralized Mortgage Obligation Bonds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CollateralizedMortgageObligationsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$50falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Collateralized Mortgage Obligation Bonds [Member]
12/31/2009
USD ($)
$As_Of_12_31_200968http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseCollateralized Mortgage Obligation Bonds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CollateralizedMortgageObligationsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse50false0us-gaap_DefinedBe
nefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse9700000097falsefalsefalsefalsefalse2truefalsefalse9200000092falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (
usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse51false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e51falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Event Driven Hedge Funds [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103116http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseEven
t Driven Hedge Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_HedgeFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$52falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Event Driven Hedge Funds [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009939http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseEvent
Driven Hedge Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_HedgeFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse52false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse8600000086falsefalsefalsefalsefalse2truefalsefalse6300000063falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse53false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e53falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Event Driven Hedge Funds [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103101http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseEvent Driven Hedge Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_HedgeFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUni
t1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$54falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Event Driven Hedge Funds [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009927http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseEvent Driven Hedge Funds [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_HedgeFundsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit
1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse54false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse8600000086falsefalsefalsefalsefalse2truefalsefalse6300000063falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the
measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse55false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e55falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Venture Capital and Limited Partnerships [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103118http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseVent
ure Capital and Limited Partnerships [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_VentureCapitalAndLimitedPartnershipsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$56falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Venture Capital and Limited Partnerships [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009942http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseVentu
re Capital and Limited Partnerships [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_VentureCapitalAndLimitedPartnershipsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse56false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse415000000415falsefalsefalsefalsefalse2truefalsefalse391000000391falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Refe
rence 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse57false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e57falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Venture Capital and Limited Partnerships [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010393http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseVenture Capital and Limited Partnerships [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_VentureCapitalAndLimitedPartnershipsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$58falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Venture Capital and Limited Partnerships [Member]
12/31/2009
USD ($)
$As_Of_12_31_200965http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseVenture Capital and Limited Partnerships [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_VentureCapitalAndLimitedPartnershipsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse58false0us-gaap_DefinedBen
efitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse415000000415falsefalsefalsefalsefalse2truefalsefalse391000000391falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricte
d (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse59false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e59falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Real Estate Other [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103109http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseReal
Estate Other [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_RealEstateOtherMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$60falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Real Estate Other [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009933http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseReal
Estate Other [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_RealEstateOtherMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse60false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1100000011falsefalsefalsefalsefalse2truefalsefalse80000008falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse61false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e61falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Real Estate Other [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009725http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseReal
Estate Other [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_RealEstateOtherMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse62false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse80000008falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse63false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e62falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Real Estate Other [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010390http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseReal Estate Other [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_RealEstateOtherMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$63falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Real Estate Other [Member]
12/31/2009
USD ($)
$As_Of_12_31_200960http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseReal Estate Other [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_RealEstateOtherMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse64false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1100000011falsefalsefalsefalsefalse2truefalsefalse1600000016falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Pl
an assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse65false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e64falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Insurance Contracts [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103117http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseInsu
rance Contracts [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_InsuranceContractsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$65falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Insurance Contracts [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009941http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseInsur
ance Contracts [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_InsuranceContractsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse66false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalse
IsEquityAdjustmentRow>falsefalsefalseverboselabel1truefalsefalse144000000144falsefalsefalsefalsefalse2truefalsefalse141000000141falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse67false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e66falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Insurance Contracts [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010389http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseInsurance Contracts [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_InsuranceContractsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1
Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$67falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Insurance Contracts [Member]
12/31/2009
USD ($)
$As_Of_12_31_200959http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseInsurance Contracts [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldibmy_InsuranceContractsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1<
/UnitID>Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse68false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse144000000144falsefalsefalsefalsefalse2truefalsefalse141000000141falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measure
ment date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse69false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e68falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Cash and Cash Equivalents [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103103http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseCash
and Cash Equivalents [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CashAndCashEquivalentsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$69falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Cash and Cash Equivalents [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009929http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseCash
and Cash Equivalents [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CashAndCashEquivalentsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse70false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse-32000000-32falsefalsefalsefalsefalse2truefalsefalse-14000000-14falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse71false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e70falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Cash and Cash Equivalents [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010395http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseCash and Cash Equivalents [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CashAndCashEquivalentsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$71falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : Cash and Cash Equivalents [Member]
12/31/2009
USD ($)
$As_Of_12_31_200967http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseCash and Cash Equivalents [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CashAndCashEquivalentsMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse72false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse-32000000-32falsefalsefalsefalsefalse2truefalsefalse-14000000-14falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fa
ir value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse73false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e72falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : US Treasury and Agency Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103107http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseUS T
reasury and Agency Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_USTreasuryAndGovernmentMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$73falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : US Treasury and Agency Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009932http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseUS Tr
easury and Agency Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_USTreasuryAndGovernmentMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse74false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse2600000026falsefalsefalsefalsefalse2truefalsefalse131000000131falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/200
3/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse75false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e74falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : US Treasury and Agency Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_201011http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseUS Tre
asury and Agency Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_USTreasuryAndGovernmentMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$75falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : US Treasury and Agency Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009940http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberfalsefalseUS Tr
easury and Agency Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_USTreasuryAndGovernmentMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse76false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse112000000112falsefalsefalsefalsefalse2truefalsefalse90000009falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/
role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse77false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e76falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : US Treasury and Agency Securities [Member]
12/31/2010
USD ($)
$As_Of_12_31_20103102http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseUS Treasury and Agency Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_USTreasuryAndGovernmentMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$77falsefalseUSDtruefalse{us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxis} : US Treasury and Agency Securities [Member]
12/31/2009
USD ($)
$As_Of_12_31_2009928http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseUS Treasury and Agency Securities [Member]us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_USTreasuryAndGovernmentMemberus-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsMajorTypesOfTradingSecuritiesAndAssetsAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse78false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
us-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse138000000138falsefalsefalsefalsefalse2truefalsefalse140000000140falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to pro
vide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse79false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e78falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010221http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberUnit1Standardhtt
p://www.xbrl.org/2003/iso4217USDiso42170USDUSD$79falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 1 [Member]
12/31/2009
USD ($)
$As_Of_12_31_200914http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 1 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel1Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberUnit1Standardhttp
://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse80false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse21640000002164falsefalsefalsefal
sefalse2truefalsefalse19800000001980falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a co
ntributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse81false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e80falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010262http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberUnit1Standardhtt
p://www.xbrl.org/2003/iso4217USDiso42170USDUSD$81falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 2 [Member]
12/31/2009
USD ($)
$As_Of_12_31_200915http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 2 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel2Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberUnit1Standardhttp
://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse82false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse33200000003320falsefalsefalsefal
sefalse2truefalsefalse28160000002816falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a co
ntributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse83false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.bms.com/taxonomy/role/disclosurepensionpostretirementandpostemploymentliabilitiesfairvalueofpensionandpostretirementplanassetsbyassetcategorydetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefals
e82falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
12/31/2010
USD ($)
$As_Of_12_31_2010263http://www.sec.gov/CIK0000014272instant2010-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberUnit1Standardhtt
p://www.xbrl.org/2003/iso4217USDiso42170USDUSD$83falsefalseUSDtruefalse{us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxis} : Level 3 [Member]
12/31/2009
USD ($)
$As_Of_12_31_200916http://www.sec.gov/CIK0000014272instant2009-12-31T00:00:000001-01-01T00:00:00falsefalseLevel 3 [Member]us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_DefinedBenefitPlanFairValueOfPlanAssetsByMeasurementAxisexplicitMemberUnit1Standardhttp
://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse84false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse597000000597falsetruefalsefalse<
/hasSegments>false2truefalsefalse585000000585falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contribu
tory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph d(iv)(b)(i)
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 49
falsefalse283PENSION, POSTRETIREMENT AND POSTEMPLOYMENT LIABILITIES (Fair Value of Pension and Postretirement Plan Assets by Asset Category) (Details) (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue